Death date invalidated by Last Will and Testament. The Will was drafted on the 15 June 1723, which is not a probate date. Data an original image at:—
https://www.ancestry.com/discoveryui-content/view/339622:9069?ssrc=...
FindAGrave (https://www.findagrave.com/memorial/146301511/thomas-taber), Wikitree (https://www.wikitree.com/wiki/Taber-73), and familysearch (https://www.familysearch.org/tree/person/changelog/LDQT-K2J/death) all have his death as 11 Nov 1730, not 11 Nov 1720. A death in late 1730 is consistent with a will dated 15 June 1723 that was proved in March 1732/33. Unfortunately, at first glance I was not able to find an actual death entry for him in the Dartmouth vital records.
A death date of 11 Nov 1720 was given in George L. Randall, Taber Genealogy: Descendants of Thomas, Son of Philip Taber (New Bedford: 1924), p. 6. This publication has been critiqued by Robert Charles Anderson in The Great Migration Begins as quite sloppy regarding 17th-century data (https://www.ancestry.com/imageviewer/collections/2496/images/42521_...)
Nine years earlier, in an address to the Old Dartmouth Historical Society on the life of Thomas Tabor, his death was merely put after the execution of his will in 1723 and before its probate in early 1733.(https://www.ancestry.com/imageviewer/collections/19362/images/dvm_L...).
There is definitely no record of Thomas's death in the Dartmouth town records. It appears to me that the other sites have modified the 11 Nov 1720 date given by George Randall to 11 Nov 1730 to fit the data from the will, but in reality all that can be said is that he died (probably not too long) before the date of probate in March 1732/33.